4 - 63mm Wheel Blickle Castor 500kg Capacity HRIG-POA 63G levelling castors. These castors are used for applications where the unit needs to be mobile & also needs to be fixed in position on feet. The castors are easily adjusted using the hand-wheel incorporated into the body, when the rubber pad is screwed down the unit is fully immobilized & the rubber pad also acts as a vibration dampening mount. They have a single M12 hole on the top plate, they are supplied with a 12mm thread for fixing. The mounting plate is pressed steel & the body is cast aluminium. There is a 1 year warranty against any manufacturer\""s defects. Castor dimensions: 63mm black nylon wheel, Overall height: 104mm -114mm, Weight capacity: 500kg per castor, Plate size: single M12 mounting hole (thread depth: 10mm), Levelling range: 10mm, Temperature range: -10 / +90 degrees C.